P & D Filter

Class [011]
Air filter panels for air conditioning units; air filter panels, being part of air filtering units for removing dust, smoke and allergens from the air; air filtering units for removing dust, smoke and allergens from the air; air filtering units for removing dust, smoke and allergens from the air for use in cleanrooms; air filtering units for removing dust, smoke and allergens from the air for use in operating rooms, patient rooms and hospital isolation rooms; air filters for heating and cooling registers; air filters for heating, ventilating, and air conditioning (HVAC) systems for residential and commercial buildings